Description
An Improper Certificate Validation vulnerability in the OPC-UA client and ANSL over TLS client used in Automation Studio versions before 6.5 could allow an unauthenticated attacker on the network to position themselves to intercept and interfere with data exchanges.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| B&R Industrial Automation | B&R Automation Studio | 4, 6 – < 6.5 | 6.5 |
Advisories 2
- SA25P004 Automation Studio Insufficient Server Certificate Validation ABB PSIRT · May 14, 2026
- ICSA-26-125-04 ABB B&R Automation Studio CISA ICS & IT advisories · May 5, 2026